This patch (KB958655) fixes an error that occurs with Microsoft Windows Installer and the error message is 'API call rejected - No actions in Context'. According to Microsoft: 'This issue is most likely to be encountered during the installation of SQL Server 2008 ...

The Microsoft Windows Installer is an 'application installation and configuration service'. This means that it is used for installing programs on your computer. Some software requires this latest download before you can install it.

The Microsoft .NET Framework version 2.0 (x86) redistributable package installs the .NET Framework runtime and associated files required to run applications developed to target the .NET Framework v2.0.

This update consists of previously released recommended, critical and security updates for Windows 2000, rolled into one convenient package. Installing this item provides you the same results as installing the individual updates. After you install this item, you may have to restart your computer.

Windows XP is an operating system produced by Microsoft for use on personal computers, including home and business desktops, laptops, and media centers. It was first released in August 2001, and is currently one of the most popular versions of Windows. The name "XP" is short for "eXPerience."

The Windows® Automated Installation Kit (Windows AIK) is a set of tools and documentation that support the configuration and deployment of Windows® operating systems. By using Windows AIK, you can automate Windows installations, capture Windows images with ImageX, configure and modify images using Deployment Imaging Servicing and Management (DISM), create Windows PE images, and migrate user profiles and data with the User State Migration Tool (USMT). Windows AIK also includes the Volume Activation Management Tool (VAMT), which enables IT professionals to automate and centrally manage the volume activation process using a Multiple Activation Key (MAK).

Windows 8 Consumer Preview is a prerelease version of Windows 8 that focuses on people and apps and gives you powerful new ways to use social technologies to connect with the people who are important to you.

Microsoft Exchange Server 2007 Service Pack 3 (SP3) has been designed specifically to meet the challenges facing our customers and to help address the needs of all the different businesses and organizations utilizing our Exchange Server 2007 enterprise messaging system.